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Merck

398039

1,2-Propanediol

ACS reagent grade, ≥99.5%, liquid

Synonym(s):

1,2-PDO, Propylene glycol

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About This Item

Linear Formula:
CH3CH(OH)CH2OH
CAS Number:
57-55-6
Molecular Weight:
76.09
NACRES:
NA.21
PubChem Substance ID:
24864713
UNSPSC Code:
12352100
EC Number:
200-338-0
MDL number:
MFCD00064272
Beilstein/REAXYS Number:
1340498
Assay:
≥99.5%
Form:
liquid

Key Documents

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Product Name

1,2-Propanediol, ACS reagent, ≥99.5%

InChI key

DNIAPMSPPWPWGF-UHFFFAOYSA-N

InChI

1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3

SMILES string

CC(O)CO

grade

ACS reagent

vapor density

2.62 (vs air)

vapor pressure

0.08 mmHg ( 20 °C)

assay

≥99.5%

form

liquid

autoignition temp.

779 °F

expl. lim.

12.5 %

impurities

≤0.0005 meq/g Titr. acid, ≤0.2% water

ign. residue

≤0.005%

color

APHA: ≤10

refractive index

n20/D 1.432 (lit.)

bp

187 °C (lit.)

mp

−60 °C (lit.)

density

1.036 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤1 ppm

functional group

hydroxyl

Quality Level

200

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General description

1,2-Propanediol, a 1,2-alkanediol is an industrially important chemical. Due to its increasing demand many green methods have been proposed for its synthesis mainly using the inexpensive glycerol as the starting material. It is a raw material for the synthesis of intermediates, building blocks and polymers.

Application

1,2-Propanediol may be used in the following processes:
  • Green synthesis of propylene carbonate.
  • Production of lactic acid by green catalytic oxidation.
  • Propanal generation by catalytic dehydration.

Other Notes

The article number 398039-4X2L will be discontinued. Please order the single bottle 398039-2L which is physically identical with the same exact specifications.

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

219.2 °F - closed cup

flash_point_c

104 °C - closed cup

ppe

Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

398039-4X2L: + 398039-VAR: + 398039-BULK: + 398039-25ML: + 398039-2L: + 398039-500ML: + 398039-6X500ML:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ0397
MKCW8232
WXBF1261V
WXBD8323V
WXBD8680V

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Catalytic Dehydration of 1,2-Propanediol into Propanal over Ag-Modified Silica-Alumina.
Sun D, et al.
Chemistry Letters (Jpn), 43(4), 450-452 (2014)
One-pot tandem processing of glycerol stream to 1, 2-propanediol with methanol reforming as hydrogen donor reaction.
Vasiliadou ES, et al.
Applied Catalysis. B, Environmental, 163, 258-266 (2015)
Catalytic conversion of ethyl lactate to 1,2-propanediol over CuO.
Zhang S, et al.
Chinese Journal of Chemical Engineering (2015)
Efficient one-pot production of 1, 2-propanediol and ethylene glycol from microalgae (Chlorococcum sp.) in water.
Miao G, et al.
Green Chemistry, 17(4), 2538-2544 (2015)
A novel Pd/C-catalyzed conversion of glucose to 1, 2-propanediol by water splitting with Zn.
Wang, J, et al.
Royal Society of Chemistry Advances, 5(63), 51435-51439 (2015)
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